A tosses an unbiased coin 3 times. If he gets a head all the 3 times he is to get a prize of Rs.160/- along with his entry fee of Rs.16/- otherwise he loses his entry fee. The mathematical expectation of his profit is

A boy tosses faiir coin 3 times. If he gets Rs 2X for X heads, then his expected gain equals to Rs…..

In a game, the entry fee is of 5. The game consists of a tossing a coin 3 times. If one or two heads show. Sweta gets her entry fee back. If she throw 3 heads, she receives double the entry fees. Otherwise, she will lose. For tossing a coint three times, Find the probability that she (i) Loses the entry fee. (ii) gets double entry fee. (iii) just gets her entry fee.

Read the following text and answer the following question on the basis of the same: In a game, the entry fee is 5. The game consists of a tossing a coin 3 times. If one or two heads show, Sweta gets her entry fee back. If she throws 3 heads, she receives double entry fees. Otherwise she will lose. For tossing a coin three times, find the following: Probability that she just gets her entry fee:

Read the following text and answer the following question on the basis of the same: In a game, the entry fee is 5. The game consists of a tossing a coin 3 times. If one or two heads show, Sweta gets her entry fee back. If she throws 3 heads, she receives double entry fees. Otherwise she will lose. For tossing a coin three times, find the following: Probability that she loses the entry fee:

Read the following text and answer the following question on the basis of the same: In a game, the entry fee is 5. The game consists of a tossing a coin 3 times. If one or two heads show, Sweta gets her entry fee back. If she throws 3 heads, she receives double entry fees. Otherwise she will lose. For tossing a coin three times, find the following: Sum of probability in all the above three cases:

Read the following text and answer the following question on the basis of the same: In a game, the entry fee is 5. The game consists of a tossing a coin 3 times. If one or two heads show, Sweta gets her entry fee back. If she throws 3 heads, she receives double entry fees. Otherwise she will lose. For tossing a coin three times, find the following: What is the total number of outcomes for this game?

In a game the entry fee is ₹5. The game consists of tossing coins 3 times. If one or two heads show, Sweta gets her entry fee back. If she throws 3 head, she receivers double entry fees. Otherwise she will lose. For tossing a coin three times, find the probability that she. (i) loses the entry fee (ii) gets double entey fee (iii) just gets her entry fee.

A purse contains two coins of which one is two headed coin and the other is a fair con. A person selects one of the coins at random and tosses. If he gets head, the tosses the other coin, otherwise he tosses the same coin. It is given that he got head in the second toss. The probability that his first selection is a fair coin and getting head is

A coin is tossed 6 times . Find the probability of getting at least 3 heads .

A coin is tossed 3n times. The chance that the number of times one gets head is not equal to the number of times one gets tail, is